Senior .NET Software Engineer
OkWhen
Hirezar Summary for South African Applicants
This fully remote full time position at OkWhen is open worldwide, so South Africans can apply. As a remote position, you can work from anywhere in South Africa — whether you're based in Johannesburg, Cape Town, Durban, or a smaller town.
Job Description
Please note. Directly emailing us will result in immediate disqualification. Use the application form to apply.
About OkWhen
OkWhen builds technology that powers live, virtual, and hybrid events. Our platform supports conference management, registration, payments, mobile apps, content libraries, webinars, LMS functionality, CEU tracking, sponsor management, and operational workflows.
We are hiring a Senior .NET Software Engineer to help us improve, maintain, and extend a production platform used to run complex events.
The Outcome We're Hiring For
You will own meaningful parts of our application and consistently deliver reliable software without requiring constant supervision. You will improve system performance, reduce technical debt, and turn operational problems into simple, maintainable products.
This is not a ticket-taking role. We need an engineer who can understand the existing system, make sound technical decisions, and follow work through from discovery to production.
Responsibilities
* Design, build, test, deploy, and maintain production software
* Develop backend services and APIs using C# and ASP.NET/.NET
* Build and maintain web applications using Angular
* Design, optimize, and troubleshoot SQL Server databases and queries
* Maintain and extend mobile applications using .NET MAUI
* Investigate and resolve production issues
* Improve application reliability, performance, security, and observability
* Write automated tests and maintain technical documentation
* Participate in code reviews and establish engineering standards
* Collaborate with product, operations, and event-production teams
* Break ambiguous business problems into clear technical plans
* Use AI-assisted development tools responsibly to improve speed without sacrificing quality
* 7+ years of professional software development experience
* Strong commercial experience with C#, .NET, and ASP.NET Core
* Strong experience with Angular and TypeScript
* Advanced working knowledge of SQL Server, database design, and query optimization
* Production experience with .NET MAUI or Xamarin
* Experience designing and consuming REST APIs
* Experience with Git, CI/CD, debugging, and automated testing
* Demonstrated ability to work independently in an existing codebase
* Strong written and verbal communication
* Comfortable owning outcomes, not just completing assigned tasks
Preferred Qualifications
* Experience with SaaS platforms
* Experience with event management, registration, payments, LMS, or communications systems
* Cloud experience with Azure or AWS
* Experience with distributed systems, queues, integrations, or real-time applications
* Experience modernizing legacy applications
* Experience mentoring other developers
* Health Care Plan (Medical, Dental & Vision)
* Retirement Plan (401k, IRA)
* Paid Time Off (Vacation, Sick & Public Holidays)
* Family Leave (Maternity, Paternity)
* Training & Development
* Work From Home
Tips for South African Applicants
Timezone Advantage
South Africa (SAST, UTC+2) overlaps well with European business hours and has a few hours of overlap with US East Coast. Mention your timezone flexibility in your application.
Salary in Context
Even without a listed salary, international remote roles typically pay 2-3x more than equivalent local positions in South Africa due to the exchange rate advantage.
Application Tips
Tailor your CV to international standards — use a clean format, highlight remote work experience, and include your English proficiency. Many SA applicants succeed by emphasising their strong work ethic and cultural adaptability.
Load Shedding Preparedness
If you're applying for a remote role, having a backup power solution (UPS, inverter, or generator) and mobile data as a backup internet connection shows employers you're prepared for South Africa's infrastructure challenges.
Related remote job searches
About OkWhen
OkWhen is a company in the dev industry that hires remote workers from South Africa.